Table 3.
Distribution | Number of studies where the corresponding data has been provided for all the patterns | Pooled incidence (according to abnormal CT) |
---|---|---|
Laterality | ||
Unilateral | 25 | 223/1407 (16%) |
Bilateral | 25 | 1185/1407 (84%) |
Anteroposterior distribution | ||
Anterior distribution | 4 | 47/229 (20.5%) |
Posterior distribution | 4 | 178/229 (77.7%) |
Axial distribution | ||
Central/perihilar | 15 | 44/828 (5.3%) |
Peripheral/subpleural | 15 | 570/828 (68.8%) |
Central+peripheral | 15 | 245/828 (29.5%) |
Lobar distribution | ||
Right upper lobe | 12 | 335/506 (66.2%) |
Right medial lobe | 12 | 293/506 (58%) |
Right lower lobe | 12 | 427/506 (84.3%) |
Left upper lobe | 12 | 348/506 (68.7%) |
Left lower lobe | 12 | 422/506 (83.4%) |